﻿using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.ActionConstraints;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Demo.Controllers
{
/// <summary>
/// 暂时测试类
/// </summary>
    public class TestController: Controller
    {
        public IActionResult Index()
        {
            //以下代码不行
            string[] d = new string[] { };
            d.Append("ddd");

            return Content(d.ToString());
        }
    }
}
